Nishant Kumar

Full-Stack Developer specializing in MERN stack with production experience in React.js, Node.js, Express.js, MongoDB, REST APIs, JWT authentication, and RBAC. Deployed scalable platforms serving 2000+ users with AI/ML integration. Strong foundation in Data Structures and Algorithms with 530+ problems solved on LeetCode (Rating: 1549).

Seeking

Full-Stack Developer or Backend Engineer roles.

AI/ML Intern (Work Based Learning) at NIELIT Muzaffarpur (2026-02 – Present)

• Designed end-to-end machine learning pipelines covering data preprocessing, feature engineering, and model evaluation.
• Applied classification, regression, and clustering algorithms achieving 85%+ validation accuracy.
• Performed exploratory data analysis (EDA), feature selection, and cross-validation to optimize model performance.

Full-Stack Developer Intern (Certificate) at D2D YouthStory (2025-12 – 2026-01)

• Built a scalable full-stack platform using Next.js, Node.js, and MongoDB with role-based access control (RBAC).
• Developed 15+ RESTful APIs using Node.js, Express.js, and TypeScript with JWT authentication, and rate limiting.
• Improved user engagement by 40% by delivering a job tracking system and cost calculator feature.

Machine Learning Intern (Certificate) at NIELIT (2025-06 – 2025-06)

• Implemented supervised and unsupervised ML models including Logistic Regression, Decision Trees, SVM, and K-Means.
• Evaluated model performance using confusion matrix, ROC curves, and k-fold cross-validation techniques.

Web Design Intern (Certificate) at NIELIT (2025-05 – 2025-05)

• Developed responsive web interfaces using HTML5, CSS3, and JavaScript following industry best practices.
• Collaborated with team using Git version control and Agile development workflows.

B.Tech in Information Technology – Muzaffarpur Institute of Technology (2022 – 2026)

Intermediate (12th) – RPS College, Chakeyaj (2021 – 2022)